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Harden grep key ID calls

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Key IDs may accidentally match dig output that is not the key ID (for
example the RRSIG inception or expiration time, the query ID, ...).
Search for key ID + signer name should prevent that, as that is what
only should occur in the RRSIG record, and signer name always follows
the key ID.

(cherry picked from commit 83473b9758)
This commit is contained in:
Matthijs Mekking 2019-04-19 11:52:19 +02:00
parent d8de28610d
commit 9c77cd8306
1 changed files with 38 additions and 29 deletions
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67
bin/tests/system/dnssec/tests.sh
View file

@ -3650,14 +3650,23 @@ ZSK_ID=`cat ns2/${zone}.zsk.id`
SECTIONS="+answer +noauthority +noadditional"
echo_i "testing zone $zone KSK=$KSK_ID ZSK=$ZSK_ID"
# Print IDs of keys used for generating RRSIG records for RRsets of type $1
# found in dig output file $2.
get_keys_which_signed() {
qtype=$1
output=$2
# The key ID is the 11th column of the RRSIG record line.
awk -v qt="$qtype" '$4 == "RRSIG" && $5 == qt {print $11}' < "$output"
}
# Basic checks to make sure everything is fine before the KSK is made offline.
echo_i "checking DNSKEY RRset is signed with KSK only (update-check-ksk, dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 DNSKEY $zone > dig.out.test$n
lines=$(awk '$4 == "RRSIG" && $5 == "DNSKEY" {print}' dig.out.test$n | wc -l)
lines=$(get_keys_which_signed "DNSKEY" dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
grep $KSK_ID dig.out.test$n > /dev/null || ret=1
grep $ZSK_ID dig.out.test$n > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$KSK_ID$" > /dev/null || ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID$" > /dev/null && ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
@ -3665,10 +3674,10 @@ status=$((status+ret))
echo_i "checking SOA RRset is signed with ZSK only (update-check-ksk, dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 soa $zone > dig.out.test$n
lines=$(awk '$4 == "RRSIG" && $5 == "SOA" {print}' dig.out.test$n | wc -l)
grep $KSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID dig.out.test$n > /dev/null || ret=1
lines=$(get_keys_which_signed "SOA" dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
get_keys_which_signed "SOA" dig.out.test$n | grep "^$KSK_ID$" > /dev/null && ret=1
get_keys_which_signed "SOA" dig.out.test$n | grep "^$ZSK_ID$" > /dev/null || ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
@ -3713,11 +3722,11 @@ echo send
echo_i "checking DNSKEY RRset is signed with KSK only, KSK offline (update-check-ksk, dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 DNSKEY $zone > dig.out.test$n
lines=$(awk '$4 == "RRSIG" && $5 == "DNSKEY" {print}' dig.out.test$n | wc -l)
lines=$(get_keys_which_signed "DNSKEY" dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
grep $KSK_ID dig.out.test$n > /dev/null || ret=1
grep $ZSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID2 dig.out.test$n > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$KSK_ID$" > /dev/null || ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID$" > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID2$" > /dev/null && ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
@ -3727,11 +3736,11 @@ do
echo_i "checking $qtype RRset is signed with ZSK only, KSK offline (update-check-ksk and dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 $qtype $zone > dig.out.test$n
lines=$(awk -v qt="$qtype" '$4 == "RRSIG" && $5 == qt {print}' dig.out.test$n | wc -l)
grep $KSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID2 dig.out.test$n > /dev/null || ret=1
lines=$(get_keys_which_signed $qtype dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$KSK_ID$" > /dev/null && ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$ZSK_ID$" > /dev/null && ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$ZSK_ID2$" > /dev/null || ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
@ -3782,12 +3791,12 @@ echo send
echo_i "checking DNSKEY RRset is signed with KSK only, old ZSK deleted (update-check-ksk, dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 DNSKEY $zone > dig.out.test$n
lines=$(awk '$4 == "RRSIG" && $5 == "DNSKEY" {print}' dig.out.test$n | wc -l)
lines=$(get_keys_which_signed "DNSKEY" dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
grep $KSK_ID dig.out.test$n > /dev/null || ret=1
grep $ZSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID2 dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID3 dig.out.test$n > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$KSK_ID$" > /dev/null || ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID$" > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID2$" > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID3$" > /dev/null && ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
@ -3797,12 +3806,12 @@ do
echo_i "checking $qtype RRset is signed with ZSK only, old ZSK deleted (update-check-ksk and dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 $qtype $zone > dig.out.test$n
lines=$(awk -v qt="$qtype" '$4 == "RRSIG" && $5 == qt {print}' dig.out.test$n | wc -l)
grep $KSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID2 dig.out.test$n > /dev/null || ret=1
grep $ZSK_ID3 dig.out.test$n > /dev/null && ret=1
lines=$(get_keys_which_signed $qtype dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$KSK_ID$" > /dev/null && ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$ZSK_ID$" > /dev/null && ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$ZSK_ID2$" > /dev/null || ret=1
get_keys_which_signed $qtype dig.out.test$n | grep "^$ZSK_ID3$" > /dev/null && ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
@ -3825,12 +3834,12 @@ status=$((status+ret))
echo_i "checking DNSKEY RRset is signed with KSK only, new ZSK active (update-check-ksk, dnssec-ksk-only) ($n)"
ret=0
$DIG $DIGOPTS $SECTIONS @10.53.0.2 DNSKEY $zone > dig.out.test$n
lines=$(awk '$4 == "RRSIG" && $5 == "DNSKEY" {print}' dig.out.test$n | wc -l)
lines=$(get_keys_which_signed "DNSKEY" dig.out.test$n | wc -l)
test "$lines" -eq 1 || ret=1
grep $KSK_ID dig.out.test$n > /dev/null || ret=1
grep $ZSK_ID dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID2 dig.out.test$n > /dev/null && ret=1
grep $ZSK_ID3 dig.out.test$n > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$KSK_ID$" > /dev/null || ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID$" > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID2$" > /dev/null && ret=1
get_keys_which_signed "DNSKEY" dig.out.test$n | grep "^$ZSK_ID3$" > /dev/null && ret=1
n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))